Update rebase.yml

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced automation for keeping branches up-to-date with the main codebase.

📊 Key Changes

• The automation job name was moved for clarity.
• The GitHub token is now explicitly specified during code checkout.
• Updated the cirrus-actions/rebase action to version 1.4.

🎯 Purpose & Impact

• Clearer automation workflow name improves maintainability.
• Including the GitHub token ensures secure access and authorization during code checkout.
• The action version update brings in new features, security fixes, and potential performance improvements from cirrus-actions/rebase.
• These changes may lead to a smoother and more secure development process, benefiting contributors and maintainers working on the project. 🛠💻🔒